超冷极性 $\mathrm{^{23}Na^{40}K}$ 分子绝热制备的建模
量子气体
2018-01-17 v2 原子物理
摘要
在本工作中，我们对双原子 分子从弱束缚 Feshbach 分子态经由 电子势中的 激发态至 rovibronic 基态的受激拉曼绝热通道 (STIRAP) 进行了建模与实现。通过考虑分子丰富的内部结构及耦合激光的相位噪声，我们展示了如何建立极性分子制备的定量模型。我们发现模型预测与实验结果高度吻合，证明了该模型在寻找理想 STIRAP 转移路径中的适用性。我们总共制备了 5000 个费米子基态分子。样品的典型相空间密度为 0.03，并观测到高达 0.54 Debye 的诱导偶极矩。
引用
@article{arxiv.1709.00902,
title = {Modeling the adiabatic creation of ultracold, polar $\mathrm{^{23}Na^{40}K}$ molecules},
author = {Frauke Seeßelberg and Nikolaus Buchheim and Zhen-Kai Lu and Tobias Schneider and Xin-Yu Luo and Eberhard Tiemann and Immanuel Bloch and Christoph Gohle},
journal= {arXiv preprint arXiv:1709.00902},
year = {2018}
}
备注
7 pages, 5 figures Version 2: Fixed a few typos, elaborated more on the differences between different choices of intermediate state, clarified H\"onl-London factor, added a intuitive explanation of the benefits of detuned STIRAP, elaborated on realized dipole moments in diatomics, compared phase-space density reducing processes in the whole molecule creation process, added two more references